package com.wht.service;

import com.wht.domain.User;
import com.wht.service.UserService;

import java.util.ArrayList;
import java.util.List;

public class UserServiceImpl implements UserService {


    public List<User> queryUsers() {
//        System.out.println("事务控制");
//        System.out.println("日志打印");
        System.out.println("queryUser");
        return new ArrayList<User>();
    }


    public Integer updateUser(User user) {
//        System.out.println("事务控制");
//        System.out.println("日志打印");
        System.out.println("update User");
        if(1==1) {
            throw new NullPointerException("test 空指针");
        }
        return 1;
    }


    public Integer saveUser(User user) {
//        System.out.println("事务控制");
//        System.out.println("日志打印");
        System.out.println("Save User");
        return 1;
    }


    public Integer deleteUser(Integer id) {
//        System.out.println("事务控制");
//        System.out.println("日志打印");
        System.out.println("delete User");
        return 1;
    }
}